Keyvani was last seen by her father during a supervised visitation in Philadelphia, Pennsylvania on September 7, 2006. On November 3, the court awarded Keyvani's father sole custody of the child. However, Keyvani's mother, Carolyn Anne Celine Casey, had already taken her and fled. She sold her car, quit her job and moved out of her apartment. Photographs and vital statistics for Casey are posted below this case summary. She is wanted locally for parental kidnapping and has a federal warrant for her arrest for unlawful flight to avoid prosecution.

Casey has previously lived and worked in Spain. She is a religious individual and active in the Catholic Church. She has previously worked as a teacher, librarian and massage therapist. Keyvani's whereabouts are unknown and her case remains unsolved.